JPH0351312U - - Google Patents
Info
- Publication number
- JPH0351312U JPH0351312U JP11254889U JP11254889U JPH0351312U JP H0351312 U JPH0351312 U JP H0351312U JP 11254889 U JP11254889 U JP 11254889U JP 11254889 U JP11254889 U JP 11254889U JP H0351312 U JPH0351312 U JP H0351312U
- Authority
- JP
- Japan
- Prior art keywords
- workpiece
- helical grooves
- axis
- rotary encoder
- contact sensor
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000001514 detection method Methods 0.000 claims 1
- 239000011295 pitch Substances 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 2
- 238000005259 measurement Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
Landscapes
- Length Measuring Devices With Unspecified Measuring Means (AREA)
Description
第１図〜第５図は本考案の実施例を示し、第１
図はねじれ溝のねじれ方向判別装置の概略ブロツ
ク図、第２図ａ〜ｄはランド幅の測定原理を示す
タイミングチヤート、第３図はワークの正面図、
第４図は基準ランド幅の算出について示す説明図
、第５図はねじれ溝のねじれ方向を判別する手順
を示すフローチヤートである。
１……ワーク、１ａ……回転軸、２Ｒ，２Ｌ…
…ねじれ溝、３……ランド、４……ロータリエン
コーダ、６……カウンタ、７……非接触センサ、
１０……（演算手段、比較手段たる）演算処理装
置、ｌ０……基準ランド幅。
1 to 5 show embodiments of the present invention.
The figure is a schematic block diagram of the device for determining the twist direction of a helical groove, Figures 2 a to d are timing charts showing the land width measurement principle, and Figure 3 is a front view of the workpiece.
FIG. 4 is an explanatory diagram showing the calculation of the reference land width, and FIG. 5 is a flowchart showing the procedure for determining the twist direction of the twist groove. 1... Workpiece, 1a... Rotating shaft, 2R, 2L...
...Twisted groove, 3...Land, 4...Rotary encoder, 6...Counter, 7...Non-contact sensor,
10...Arithmetic processing unit (computation means, comparison means), l0 ...Reference land width.
Claims (1)
るワークの前記ねじれ溝のピツチが等しい軸直角
断面からワークの回転軸方向にずれた軸直角断面
上でワークの外周に対向して設けた、前記ねじれ
溝の有無を検出する１個の非接触センサと、 前記ワークの回転軸に連結したロータリエンコ
ーダと、 該ロータリエンコーダから出力されるパルスを
カウントするカウンタと、 前記非接触センサの検出出力をトリガ信号とし
て求められる前記カウンタのカウント値に基づい
て相隣るねじれ溝間のランド幅を演算算出する演
算手段と、 該ランド幅と予め設定した基準ランド幅とを大
小比較する比較手段とを備えたことを特徴とする
、ねじれ溝のねじれ方向判別装置。[Claims for Utility Model Registration] A workpiece having adjacent helical grooves with opposite twisting directions on its outer periphery, on an axis-perpendicular cross-section that is shifted in the direction of the rotational axis of the workpiece from an axis-perpendicular cross-section in which the pitches of the said helical grooves are equal. a non-contact sensor provided facing the outer periphery to detect the presence or absence of the twisted groove; a rotary encoder connected to the rotating shaft of the workpiece; a counter that counts pulses output from the rotary encoder; a calculation means for calculating a land width between adjacent helical grooves based on a count value of the counter obtained using a detection output of the non-contact sensor as a trigger signal; A device for determining the twist direction of a twist groove, comprising a comparison means for comparing sizes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11254889U JPH0740170Y2 (en) | 1989-09-26 | 1989-09-26 | Twisting direction determination device for twist groove |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11254889U JPH0740170Y2 (en) | 1989-09-26 | 1989-09-26 | Twisting direction determination device for twist groove |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0351312U true JPH0351312U (en) | 1991-05-20 |
| JPH0740170Y2 JPH0740170Y2 (en) | 1995-09-13 |
Family
ID=31660992
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP11254889U Expired - Fee Related JPH0740170Y2 (en) | 1989-09-26 | 1989-09-26 | Twisting direction determination device for twist groove |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0740170Y2 (en) |
-
1989
- 1989-09-26 JP JP11254889U patent/JPH0740170Y2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0740170Y2 (en) | 1995-09-13 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |